Msr interface.h

 #ifndef MSR_INTERFACE_H_
 #define MSR_INTERFACE_H_
 
 #ifdef __cplusplus
 extern "C"
 {
 #endif
 
 typedef void (*msr_notifier)(void* pUserData);
 
 typedef int (*msr_open)(void);
 typedef int (*msr_close)(void);
 typedef int (*msr_register_notifier)(msr_notifier notifier, void* pUserData);
 typedef int (*msr_unregister_notifier)();
 typedef int (*msr_get_track_error)(int nTrackIndex);
 typedef int (*msr_get_track_data_length)(int nTrackIndex);
 typedef int (*msr_get_track_data)(int nTrackIndex, unsigned char* pTrackData, int nLength);
 
 #ifdef __cplusplus
 }
 #endif
 
 #endif /* MSR_INTERFACE_H_ */